First sample of N2H+ nitrogen isotopic ratio measurements in low-mass protostars

  title={First sample of N2H+ nitrogen isotopic ratio measurements in low-mass protostars},
  author={Elena Redaelli and Luca Bizzocchi and Paola Caselli},
  journal={arXiv: Astrophysics of Galaxies},
Context. The nitrogen isotopic ratio is considered an important diagnostic tool of the star formation process, and $N_2H^+$ is particularly important because it is directly linked to molecular nitrogen $N_2$. However, theoretical models still lack to provide an exhaustive explanation for the observed $^{14}N/^{15}N$ values. Aims. Recent theoretical works suggest that the $^{14}N/^{15}N$ behaviour is dominated by two competing reactions that destroy $ N_2H^+$: dissociative recombination and… Expand
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